http://encodor.com/index.php
this is the best tool for quick and thorough encryption. the interface is
plain and simple, encodor supports up to 400 characters, with up to 30
characters the password can be very strong, no sign up is required to use
encodor, and there are no limitations of how often it can be used. nothing
is revealed about the encryption method used.
Taken from:
http://linkfilter.net/?id=140219